Likely to occur for a perl binary that was not properly installed. Correct by conducting a proper installation.

print "# Perl version `$]' installed, expected $ivp_VERSION.\n";

Likely to occur for a perl that was not properly installed. Correct by conducting a proper installation.

print "# Perl \@INC directory `$_' does not appear to exist.\n";

Likely to occur for a perl library tree that was not properly installed. Correct by conducting a proper installation.

print "# Needed module `$_' does not appear to be properly installed.\n";

One of the two modules that is used by perlivp was not present in the installation. This is a serious error since it adversely affects perlivp's ability to function. You may be able to correct this by performing a proper perl installation.

print "# Required module `$_' does not appear to be properly installed.\n";

An attempt to eval "require $module" failed, even though the list of extensions indicated that it should succeed. Correct by conducting a proper installation.

print "# Unnecessary module `bLuRfle' appears to be installed.\n";

This test not coming out ok could indicate that you have in fact installed a bLuRfle.pm module or that the eval " require \"$module_name.pm\"; " test may give misleading results with your installation of perl. If yours is the latter case then please let the author know.